   '[[gravatar "0.1.0"]])
 
 (def ^:private +gravatar-defaults+
-  {:filterer :content})
+  {:filterer :has-content})
 
 (deftask gravatar
   "Find gravatar urls using emails"
   [s source-key SOURCE-PROP kw "email property used to lookup gravatar url"
    t target-key TARGET-PROP kw "property name to store gravatar url"
-   _ filterer FILTER code "predicate to use for selecting entries (default: `:content`)"]
+   _ filterer FILTER code "predicate to use for selecting entries (default: `:has-content`)"]
   (let [pod (create-pod gravatar-deps)
         options (merge +gravatar-defaults+ *opts*)]
     (boot/with-pre-wrap fileset

(deftask atom-feed
  "Generate Atom feed"
  [f filename    FILENAME    str  "generated Atom feed filename"
   _ filterer    FILTER      code "predicate to use for selecting entries (default: `:content`)"
   o out-dir     OUTDIR      str  "the output directory"
   t site-title  TITLE       str  "feed title"
   s subtitle    SUBTITLE    str  "feed subtitle"

  '[[time-to-read "0.1.0"]])

(def ^:private +ttr-defaults+
  {:filterer :has-content})

(deftask ttr
  "Calculate time to read for each file. Add `:ttr` key to the files' meta"
  [_ filterer FILTER code "predicate to use for selecting entries (default: `:has-content`)"]
  (let [pod     (create-pod ttr-deps)
        options (merge +ttr-defaults+ *opts*)]
    (boot/with-pre-wrap fileset
